Paper-feeding machine



No. 609,437. Patented Aug. 23, 1898'. E. M. .IILLSON.

'Application filed July 26, 1897.)

(No Model.)

717. 3. 1 M A I WITNESSES:

:u/ 4 INVEN'IEIR:

Nrrn STATES T ATENT much.

EDWVIN M. JILLSON, OF WEST OARROLLTON, OI-IIO.

PAPER-FEEDING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 609,437, dated August23, 1898. Application filed July 26 1897. Serial No. 645,992. (Nomodel.)

useful Improvements in Paper-Feeding Machines; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the figures of reference marked thereon, which form a part ofthis specification. i

This invention has reference to improvements in paper-feeding mechanismby which the sheets of paper are fed from a pile to be subsequentlyoperated upon by the mechanism of a printing-press, ruling-machine,- orother machine. These machines are provided with a table upon which thepile of paper is supported and which is automatically raised as thesheets are fed oif from the top of the pile, a sliding buckling-fingerfor buckling or raising a portion of each top sheet to admit airthereunder, and thereby insure a proper re moval of each sheet of paper,holding-down fingers for holding the sheets as they are being buckled,and a pile-retaining finger for holding the pile of paper in position.These devices and the means for operating them are shown and, describedin LettersPatent of the United States No. 434,629, dated August 19,1890. In the present organization the sliding buckling-finger isoperated as formerly; but the pile-retaining finger and the arm whichcarries the holding-down or gage foot are 0perated by a single cam;

The object of the present invention is to provide means for obtaining asubstantially shorter buckle of the paper thanhas heretofore beenobtained, whereby a more positive feed of the paper is obtained andtheliability to buckle two sheets at a time is obviated.

A further object of the invention is-to reduce the mechanism necessaryto feed the paper and to dispense with the use ofseparate cams foroperating thepile-retaining finger and the arm to which the gage-foot isattached.

In the accompanying drawings, Figure 1 is a front elevation of thesheet-buckling mech anism. Fig. 2 is a top plan view of the same. Fig. 3is a section on the line 00 0c of Fig. 1. Fig. 4 is a detached view oftherock-arm and its actuating-cam. Fig. 5 is an elevation with partsbroken away to more clearly show some of the connections ofthe mechanismfor operating the pile-retaining finger.

Similar numerals indicate corresponding parts in the several views.

- 1 designates the vertically-movable table upon which the pile of paperis supported.

2 is the head or frame which supports the buckling mechanism and whichis secured to a supporting-rod 3.

'4. designates the driving-shaft, which is journaled in the head orframe 2 and through which motion is imparted to the buckling mechanism.Q. r 5 designates a depending rock-arm which has a pivotal connection atits upper end to the head 2 and hasan extended arm 6. The said rock-armis further provided at its lower end with a buckling-finger 7,which ismoved back and forth thereby and carries on' its free end a roller 8,that bears uponthe sheet and buckles it while moving outward. In theoutward or buckling movement of the bucklingfinger the roller 8 islockedagainst rotation by the plate 30, that is secured to the finger. Anoscillatory movement is imparted to the rock-arm bya crank 9 on thedriving-shaft 4: and connecting with the extended arm 6 by a link 10.

11 designates the vertically-movable pileretaining finger, secured to ahorizontal rockshaft 12, that is mounted in bearings on. the lower sideof the head 2. This pile-retaining finger bears upon the corner of thepile of paper in the rear of the buckling-finger and holds said pile inplace while the top sheet is being removed.

. '13 is a sleeve surrounding the rock-shaft 12 and provided with an arm14, upon which a cam 15' operates. This cam 15 is the only cam employedin connection with thefeeding devices. The sleeve 13 is supported inthehead 2. The sleeve 13 is held in the frame 2 by, a collar 25.

26 is a coil-spring surrounding the rock shaft and maintaining aconnection and tension between the pile-retaining finger and the sleevecarrying the arm 14, which bears against the cam 15. WVhen the said cambears against the arm and turns the sleeve, it creates a tension on thesaid spring,which tension is transmitted through the rock-shaft to thepile-retaining finger 11. WVhen said cam releases the arm 14, thetension on the spring is removed and the pile-retaining finger restsloosely on top of the pile.

27 is a short arm formed on the pile-retaining finger and resting on apin 28 formed on the arm 14,whereby the pile-retaining finger issupported when tension on the latter has been removed.

29 is a forwardly-projecting lug upon which the arm 14 rests when allthe paper has been removed.

The cam 15 is mounted on the drivingshaft 4.

The mechanism described in the foregoing is substantially the same asthat shown and described in Letters Patent No. 434,629,11ereinbeforereferred to, and to which reference is hereby made for a more completedescription, if such should be found necessary.

33 designates a lifting-rod by means of which the buckling-finger israised from the pile during its backward movement. This lifting-rod isattached with its inner end con nected to the link 10, that connects therockarm with the crank of the driving-shaft, and passes with itsopposite end through a post 31, formed on a lug 32, integral with theeye 34. The above mechanism is the same as that shown and described inthe patent to WVomersley, No. 475,839, dated May 31, 1892. Therefore itis no part of the present invention.

Coming now to a description of the means for obtaining a shorter buckleof the sheets than has heretofore been obtained by the means employed,16 and 17 designate a rockarm consisting of two members having a hingedor pivotal connection at 18 and maintained in a normally-closed positionby means of a plate-spring 19, that is attached to the part 16. Thelatter member is rigidly secured on the feed-regulating shaft 20, andmember 17 projects in the path of the cam 15 and is actuated thereby.The lower end of member 16 carries a gage-foot 21, which has aconnection with a vertical shank 22, which in turn has an adjustableattachment with a slotted arm 23. The latter arm is adjustable on theend of the arm 16. The foot 21 rests upon the pile of paper, and againstit the sheets are buckled, as shown in Fig. 1. It is essential that thearm 16 be short-say about four to four and three-quarters inches inlength-so that the buckle 24 may be formed a short distance from theedge of the pile. The gage-foot 21 has a vertical movement toward andfrom the pile of paper to release each sheet after the formation of thebuckle. By hinging the two members 16 and 1'7 the action of the cam 15will at no time interfere with the other function of the shaft 20. Thefunction of the shaft 20 is to elevate the feed-table 1 throughmechanism fully shown and described in Patent No. 434,629, hereinbeforereferred to, and which is no part of the present invention. By thushinging the arm consisting of the two members 16 and 1'7 and having itoperated upon directly by the cam 15 a more direct action is imparted tothe feed-regulating shaft 20. The spring joint allows the cam to rotatewhen the gagefoot 21 is in contact with the pile of paper.

The cam 15 operates upon the inner end 17 of the arm 16 and upon the arm14 simultaneously. The cam 15 in its rotation first actuates the arm 16by coming in contact with the inner end 17 thereof. This holds thegage-foot 21 down for the buckle. The cam, continuing to move, nextcomes in contact with the arm 14 and presses down the pileretainingfinger 11. The buckling-finger 7 just prior to this has removed the topsheet from under the said finger 11. The pile-retaining finger 11 ispressed against the pile of paper by said cam only during the time inwhich a sheet is being buckled and fed forward from the pile. Themovement of the finger 11 against the pile of paper is effected throughthe arm 14 and the cam.

In feeding a thin quality of paper the holddown finger does not have tobe tilted but very little, and as the cam has to rotate the same on alloccasions provision has to be made to allow it to not interfere with thearm 16. This provision is made by hinging the arm as shown anddescribed. In feeding thicker paper the arm has to lift higher and doesnot have to break joint as much. The thicker the paper is the less isthe obstruction offered the cam.

Having described my invention, I claim 1. In a paper-feeding mechanism,the combination with a main driving-shaft, a cam thereon, and afeed-regulating shaft 20, of a short rock-arm consisting of two memberswith abutting ends, and having a spring-controlled connection, and oneof which is rigidly mounted on said shaft 20, a gage-foot carried on oneof said members and adapted to rest upon a pile of paper adjacent to theedge thereof, a spring holding said members normally closed but allowingthem to yield under the action of the cam when the gage foot is incontact with the paper, substantially as specified.

2. In a paper-feeding mechanism, the combination with a maindriving-shaft, a'cam thereon, the feed-regulating shaft 20, a rockarmand a buckling-finger mounted thereon, of a short rock-arm consisting oftwo members the inner ends of which abut, and have a spring-controlledconnection, one of said members being supported on the shaft 20 and theother of said members being in the path of said cam so that therotating'cam coming buckle in each sheet, substantially as dein contacttherewith will cause said member scribed. [0 to yield during certainperiods in the oper- In testimony whereof I affix my signature ation ofsaid rock-arm, a gage-foot carried on in presence of two Witnesses. Y

one member of said rock-arm and adapted to EDWIN M. J ILLSON.

rest upon the top sheet of a pile of paper at Witnesses:

a suitable point near the edge of said pile to R. J. MOCARTY,

enable the buckling-finger to make a short A. H. MOOARTY.

